Princess Charlotte, 2, is the queen of the style -- more so than even her mom!

According to a new report by eBay, Princess Charlotte is the queen of the copycats. In other words, when she wears something, it's almost instantly sold out. eBay said the 2-year-old has the "biggest spend power" of any of the royals, as there are more searches for her outfits than even those worn by her extremely fashionable mom, Duchess Kate.

Murray Lambell, eBay's vice president of trading, told The Daily Mail, "The Royal Family are hugely popular with British buyers with Her Majesty regularly attracting the attention of shoppers. But it's the youngest generation of royals who really generate the must-have fashion items -- and driving a new generation of shopping [behavior] on eBay."

For instance, after photos of Charlotte's second birthday -- during which she wore a yellow cardigan -- emerged, searches on eBay "increased tenfold" and the item "instantly" sold out, Daily Mail said.

The Duke and Duchess are delighted to share a new photograph of Princess Charlotte to mark her second birthday tomorrow 🎈 pic.twitter.com/0Xftc3EFPz